Don't know if this is your issue, but it's about the only conflict/fix we are aware of with this old, old, (did I say 'old'?) game;
There is some sort of conflict with the DirectDraw interfaces provided by nVidia in recent driver revisions. You can avoid it by disabling DirectDraw acceleration - click start, run, type in "dxdiag", click the Display tab, click "Disable" next to "DirectDraw Acceleration." Note that this will also disable hardware acceleration in all your other games, so don't forget to go turn it back on when you're done playing TCM.
